A006551 - OEIS

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A006551 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`11`
`5`		`66`
`6`		`302`
`7`		`2416`
`8`		`15619`
`9`		`156190`
`10`		`1310354`
`11`		`15724248`
`12`		`162512286`
`13`		`2275172004`
`14`		`27971176092`
`15`		`447538817472`
`16`		`6382798925475`
`17`		`114890380658550`
`18`		`1865385657780650`
`19`		`37307713155613000`
`20`		`679562217794156938`
`21`		`14950368791471452636`

[1,1,4,11,66,302,2416,15619,156190,1310354, 15724248,162512286,2275172004,27971176092, 447538817472,6382798925475,114890380658550, 1865385657780650,37307713155613000, 679562217794156938,14950368791471452636]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)